Profile: Fairford Electronics Ltd. specializes in designing & producing soft starters and energy optimizing soft starters for AC induction motors. The XFE soft starter has a range of ratings and options available such as use with an external bypass contactor and non-energy optimizing or optimizing depending on the application. The easy-to-use keypad and high visibility LCD multi-character display are just two of the features which make this soft starter the ideal choice for most applications and places this unit way ahead of the competition. The 4MC gold card is a retrofit replacement for old 3MC and 4MC control cards.